Pfizer

1,845 total trials 106 currently recruiting 1335 completed

Pfizer sponsors 1,845 registered US clinical trials on ClinicalTrials.gov, 106 of them currently recruiting, and 1,335 completed. 504 of these trials are in Phase 3-4 (later-stage) and 1,173 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 44 trials.

Trial Pipeline

1,845 total, page 23 of 37

COMPLETED

Effect of Prevnar 13 on Ear Infections in Children

NCT01199016

COMPLETED Phase 3

A Study To Evaluate The Effects And Safety Of Treatment, Treatment Withdrawal, Followed By Re-Treatment With CP-690,550 In Subjects With Moderate To Severe Chronic Plaque Psoriasis

NCT01186744

COMPLETED Phase 1

Study Evaluating The Safety Of AAB-003 (PF-05236812) In Subjects With Alzheimer's Disease

NCT01193608

COMPLETED Phase 1

Estimate The Effect Of Repeat-Dose Rifampin On The Pharmacokinetics Of CP-690,550 In Healthy Volunteers

NCT01204112

TERMINATED Phase 3

A Long Term Study To Evaluate The Safety And Tolerability Of CP-690,550 For Patients With Moderate To Severe Chronic Plaque Psoriasis

NCT01163253

COMPLETED Phase 1

Safety And Tolerability Study Of RN6G In Subjects With Advanced Dry, Age-Related Macular Degeneration Including Geographic Atrophy

NCT01003691

COMPLETED Phase 2

PF-00489791 For The Treatment Of Raynaud's

NCT01090492

COMPLETED Phase 4

Open Label Drug Interaction Study Evaluating Desvenlafaxine Succinate Sustained Release (DVS SR) 100mg On The Pharmacokinetics Of Aripiprazole When Coadministered To Healthy Subjects

NCT01188668

COMPLETED Phase 1

A Study Of Combined C- MET Inhibitor And PAN-HER Inhibitor (PF-02341066 And PF-00299804) In Patients With Non- Small Cell Lung Cancer

NCT01121575

COMPLETED Phase 4

Prevalence of Psoriatic Arthritis in Adults With Psoriasis: An Estimate From Dermatology Practice

NCT01147874

COMPLETED Phase 1

Single Dose Study Of PF-04308515 And Prednisone On Carbohydrate

NCT01199029

COMPLETED Phase 4

Open-Label Drug Interaction Study Evaluating Desvenlafaxine Succinate Sustained Release (DVS SR) 100mg On The Pharmacokinetics Of Tamoxifen When Coadministered To Healthy Post-Menopausal Female Subjects

NCT01189500

COMPLETED Phase 1

Single Dose Study Of PF-04171327 And Prednisone On Carbohydrate Metabolism

NCT01199900

COMPLETED Phase 1

To Evaluate The Relationship Between Plasma Drug Levels And Receptor Binding In Brain Using PET (Positron Emission Tomography) In Healthy Volunteers

NCT01173757

COMPLETED Phase 1

A Study To Observe Safety And Blood Concentrations Of PF-04995274 During And Following the Administration of Multiple Doses Of PF-04995274 In Healthy Adult And Healthy Elderly Volunteers.

NCT01169714

TERMINATED Phase 4

Conversion to Embeda With Rescue Trial

NCT01179191

TERMINATED Phase 1

A Multiple Dose Study Of PF-05161704 In Healthy Volunteers

NCT01202266

COMPLETED Phase 1

A Clinical Study To Characterize The Pharmacokinetics And The Effects Of Food On Oxycodone In Healthy Volunteers

NCT01530542

COMPLETED Phase 1

A Study to Assess the Cognitive Effects of Fesoterodine in Elderly Subjects

NCT01161472

COMPLETED Phase 1

Estimation Of Effect Of Ketoconazole On Pharmacokinetics Of Crizotinib In Healthy Volunteers

NCT01149785

COMPLETED Phase 1

A Single Dose Study Of PF-05161704 In Healthy Volunteers

NCT01183715

COMPLETED Phase 1

Pharmacokinetics, Safety and Tolerability Study of PF-03463275 in Healthy Male Japanese and Western Subjects

NCT01159626

COMPLETED

Study Estimating the Impact of Prevnar 13™ (13vPnC) on Invasive Pneumococcal Disease

NCT01128439

COMPLETED Phase 1

Pharmacokinetic And Pharmacodynamic Study Of A Single-Dose Of PF-04950615 (RN316) In Combination With Atorvastatin

NCT01163851

COMPLETED Phase 1

Estimation Of Effect Of Rifampin On Pharmacokinetics Of Crizotinib In Healthy Volunteers

NCT01147055

TERMINATED Phase 2

A Study Of The Safety And Efficacy Of PF-04191834 In Patients With Osteoarthritis Of The Knee

NCT01147458

TERMINATED NA

Acute Effects Of Donepezil On Brain Perfusion And Memory In Subjects With Cognitive Impairment And Mild Alzheimer's Disease

NCT01082965

TERMINATED Phase 3

Study Providing Monotherapy (Sitaxsentan) And Combination Therapy (Sitaxsentan+Sildenafil) To Subjects With Pulmonary Arterial Hypertension (PAH) To Assess Long-Term Safety

NCT00796510

TERMINATED Phase 3

Safety Extension Study Of Tanezumab When Administered By Subcutaneous Injection To Patients With Osteoarthritis

NCT01127893

TERMINATED Phase 2

A Study Of The Efficacy And Safety Of CP-601,927 Augmentation Of Antidepressant Therapy In Major Depression

NCT01098240

COMPLETED Phase 1

A Study To Investigate The Taste Of Crizotinib Liquid In Trained Healthy Adult Volunteers

NCT01125904

COMPLETED Phase 4

Study Evaluating the Effect of Desvenlafaxine on the Pharmacokinetics of Midazolam

NCT00952653

COMPLETED Phase 1

Multiple Dose Study of PF-04991532 in Patients With Type 2 Diabetes

NCT01129258

COMPLETED Phase 1

A Multiple Dose Study To Determine Safety, Tolerability, and Pharmacokinetics Of PF-04634817 In Healthy Adult Subjects

NCT01140672

COMPLETED

Postlicensure Observational Safety Study of 13vPnC Administered to Infants and Toddlers

NCT01128426

COMPLETED Phase 4

Study Evaluating Desvenlafaxine Succinate Sustained-Release (DVS SR) In The Treatment Of Peri- And Postmenopausal Women With Major Depressive Disorder (DVS 3364)

NCT01121484

TERMINATED Phase 4

Study To Determine The Pharmacokinetics Of Sulfasalazine In Children With Juvenile Idiopathic Arthritis

NCT00637780

TERMINATED Phase 1

Study To Assess The Safety And Tolerability Of Increasing Single Doses Of ATR-107 (PF-05230900) In Healthy People

NCT01162889

COMPLETED

Impact of Prevnar 13 on Ear Infections in Children

NCT01272999

COMPLETED Phase 1

Evaluation Of Striatal Glucose Metabolism With Positron Emission Tomography Following PF-02545920 In Healthy Subjects

NCT01103726

COMPLETED Phase 2

Clinical Trial to Examine the Pain Relief of PH-797804 Alone Or With Naproxen in Subjects With Osteoarthritis of the Knee

NCT01102660

COMPLETED Phase 1

Estimate The Effect Of Lersivirine On The Pharmacokinetics Of S- And R-Methadone

NCT01099748

COMPLETED Phase 1

First In Human Study Of Increasing Oral Doses Of PF-04634817

NCT01098877

COMPLETED Phase 1

A Phase 1 Study To Estimate The Relative Bioavailability Of Co-Administered Formulations Of Azithromycin Microsphere And Chloroquine Test Formulation Compared With Co-Administered Immediate Release Individual Azithromycin And Chloroquine Tablets In Healthy Adult Subjects

NCT01100060

COMPLETED Phase 1

Study To Establish The Effects Of PF-04457845 On Sleep In Healthy Volunteers

NCT01092845

COMPLETED

Retrospective Observational Study To Update 5-Year Survival Of Subjects Who Participated In Axitinib Trial A4061012

NCT01056263

COMPLETED Phase 1

Single Dose Study of PF-04991532 in Healthy Subjects

NCT01102673

TERMINATED Phase 4

Safety Study to Assess Opiate Withdrawal Signs and Symptoms in Opioid Dependent Patients

NCT01100437

TERMINATED Phase 2

A Study Of Cisplatin (Or Carboplatin) And Etoposide With Or Without Figitumumab (CP-751,871) In Patients With Extensive-Stage Small Cell Lung Cancer

NCT00977561

TERMINATED Phase 3

An Extension To The B1451006 Protocol To Evaluate The Safety and Efficacy of Dimebon In Subjects With Moderate-to-Severe Alzheimer's Disease

NCT01066546

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Phase Distribution

PhaseTrial count
Phase 1 703
Phase 2 470
Phase 3 411
Phase 4 93

What the Pipeline for Pfizer Shows

According to the ClinicalTrials.gov registry, Pfizer is linked to 1,845 US clinical trials across every stage of research activity. Of those, 106 studies are currently recruiting, about 6% of the sponsor's indexed portfolio, and 1,335 are already marked complete, representing roughly 72% of the total.

The phase mix for Pfizer reports 504 late-stage studies (Phase 3 and Phase 4 combined) and 1,173 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for Pfizer is Healthy with 44 linked trials, and 9 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.